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Finding the Fourth Proportional to 242,694,535.60, 364,041,803.40 and 140,405,921.20

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Solution

The fourth proportional to 242,694,535.60, 364,041,803.40 and 140,405,921.20 is: 210,608,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,694,535.60 : 364,041,803.40 = 140,405,921.20 : x
  2. Step 2: Convert to fraction form
    242,694,535.60/364,041,803.40 = 140,405,921.20/x
  3. Step 3: Cross multiply
    242,694,535.60x = 364,041,803.40 × 140,405,921.20
  4. Step 4: Simplify right side
    242,694,535.60x = 51,113,624,761,686,288
  5. Step 5: Solve for x
    x = 51,113,624,761,686,288/242,694,535.60
  6. Step 6: Final answer
    x = 210,608,881.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.